256KB of Flash
It has 53 IO (including 4 HW UARTs, 14 PWMs, I2C bus) and 16 Analog Input pins.
It can mount and use most of the Arduino Shields.
An upgrade for the Arduino Mega which will sport the new Atmel USB chip plus an ATMega2560 processor with twice as much flash memory. We’ve been able to obtain some significant savings due improvements in the production process and better pricing from suppliers that we are happy to pass on to customers. This board will have the same graphic design as the UNO.
At the moment, due to limitations in the GCC compiler only 128k of flash are immediately useable but we’re very close to unlocking the whole memory space.